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Title:
NONAQUEOUS ELECTROLYTE FOR HIGH-VOLTAGE LITHIUM-ION BATTERY AND LITHIUM-ION BATTERY
Document Type and Number:
WIPO Patent Application WO/2017/020429
Kind Code:
A1
Abstract:
A nonaqueous electrolyte for a high-voltage lithium-ion battery and a lithium-ion battery. The electrolyte comprises a nonaqueous organic solvent, a lithium salt, and a double-nitrite compound selected from the structural formula 1, n being a natural number from 1 to 4. The nonaqueous electrolyte for the lithium-ion battery contains the double-nitrite compound shown in the structural formula 1, so as to form a complex together with cathode metal ions on the surface of a cathode material. Therefore, catalytic oxidation decomposition reaction on the electrolyte caused by the metal ions is suppressed, and the interfacial properties of the cathode material and the electrolyte are improved, so that the high-temperature storage and cycle performance of the battery is improved.

Inventors:
SHI, Qiao (Tongfuyu Industry Zone, Shabo Community Pingshan New Distric, Shenzhen Guangdong 8, 518118, CN)
HU, Shiguang (Tongfuyu Industry Zone, Shabo Community Pingshan New Distric, Shenzhen Guangdong 8, 518118, CN)
ZHOU, Xue (Tongfuyu Industry Zone, Shabo Community Pingshan New Distric, Shenzhen Guangdong 8, 518118, CN)
Application Number:
CN2015/091505
Publication Date:
February 09, 2017
Filing Date:
October 09, 2015
Export Citation:
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Assignee:
SHENZHEN CAPCHEM TECHNOLOGY CO.,LTD (Tongfuyu Industry Zone, Shabo Community Pingshan New Distric, Shenzhen Guangdong 8, 518118, CN)
International Classes:
H01M10/0567; C07D497/10; H01M10/0525
Foreign References:
CN104067433A2014-09-24
CN103066328A2013-04-24
CN103435804A2013-12-11
CN102473527A2012-05-23
EP1339121A22003-08-27
Attorney, Agent or Firm:
BORSAM INTELLECTUAL PROPERTY (Room 1002, Keji Building Futian International E-Commerce Industrial Park,Meilin Street, Futian Distric, Shenzhen Guangdong 9, 518049, CN)
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